The Gigahertz and Terahertz spectrum of monodeutero-oxirane (c-C2H3DO)

Albert, Sieghard; Chen, Ziqiu; Keppler, Karen; Lerch, Philippe; Quack, Martin; Schurig, Volker and Trapp, Oliver (2019): The Gigahertz and Terahertz spectrum of monodeutero-oxirane (c-C2H3DO). In: Physical Chemistry Chemical Physics, Vol. 21, No. 7: pp. 3669-3675

Abstract

The rotational spectrum of monodeutero-oxirane was analysed as measured using the Zurich Gigahertz (GHz) spectrometer and our highest resolution Fourier Transform Infrared (FTIR) spectrometer system coupled to synchrotron radiation at the Swiss Light Source (SLS). 112 distinct line frequencies have been newly assigned in the GHz range (extended to 120 GHz, compared to previous work extending to only 59 GHz) including rotational states up to J = 23. We have furthermore assigned 398 lines in the far infrared or Terahertz range (0.75-2.10 THz or 25-70 cm(-1)) including transitions with rotational quantum numbers up to J = 59. The results are discussed in relation to the possible first astrophysical observation of an isotopically chiral molecule and in relation to molecular parity violation.

• Item Type: Journal article
• Faculties: Chemistry and Pharmacy > Department of Chemistry
• Subjects: 500 Science > 540 Chemistry
• ISSN: 1463-9076
• Language: English